Brudiclad, Telchor Engineer, Lightning Runner, and Quasiduplicate

Prerequisites

• Brudiclad, Telchor Engineer on the battlefield
• Lightning Runner on the battlefield
• Quasiduplicate in hand
• 1 or more tokens on your battlefield
• available

Steps

1. Cast Quasiduplicate from your hand, targeting Lightning Runner and creating a token copy of them
2. Move to combat, triggering Brudiclad to make a 2/1 Phyrexian Myr, then turn all tokens into Lightning Runner
3. Attack with at least 4 Lightning Runners, creating 2 Energy for each Lightning Runner that attacked
4. Pay 8 Energy into one of the Lightning Runners, creating an extra combat step and untapping all creatures you control
5. repeat steps 3-5

Results

• Infinite Energy
• Infinite tokens